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Finding the Fourth Proportional to 474,377.55, 654,702.66 and 293,177.31

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Solution

The fourth proportional to 474,377.55, 654,702.66 and 293,177.31 is: 404,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,377.55 : 654,702.66 = 293,177.31 : x
  2. Step 2: Convert to fraction form
    474,377.55/654,702.66 = 293,177.31/x
  3. Step 3: Cross multiply
    474,377.55x = 654,702.66 × 293,177.31
  4. Step 4: Simplify right side
    474,377.55x = 191,943,964,708.65
  5. Step 5: Solve for x
    x = 191,943,964,708.65/474,377.55
  6. Step 6: Final answer
    x = 404,622.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.